Lady Gaga's Monster Ball tour finally closes tonight in Mexico City, having secured its place in the record books.

According to US music trade magazine Billboard, it is the highest-grossing tour ever by an artist on their debut album. The 200-date Monster Ball tour has sold $227.4m (£139m) worth of tickets, with around 2.5m people seeing Gaga perform. It is the 14th highest-grossing concert tour of all time.

The fact that the mammoth pop jaunt is still going will come as a surprise to many, given Gaga's second album, Born This Way, is due for release on May 23.

The Monster Ball tour opened in November 2009 in Montreal. Its success saw it move from theatres to arenas, with the increase in scale necessitating a revamp of the production last year. The show received positive reviews, the Guardian's Alexis Petridis noting that Gaga "leaves every other pop star looking a bit wan by comparison".